[SSPi] - Backup Process fail

Issue

The SSPI backup process fails and displays the following error message: “Management cluster backup failed. Please check logs for more details.” as shown below ..

management cluster backup failed, please check logs for more details.
Command '/usr/local/bin/clusterctl move --to-directory /image/br/sspi/mgmt-cluster/move/ --config /config/clusterctl/1/clusterctl-init.yaml --namespace ssp-rm-w01 --v 5' execution is failed. Output: Using configuration file="/config/clusterctl/1/clusterctl-init.yaml" 
.....
.....
ExecuteC github.com/spf13/cobra@v1.9.1/command.go:1148 github.com/spf13/cobra.(*Command).
Execute github.com/spf13/cobra@v1.9.1/command.go:1071 sigs.k8s.io/cluster-api/cmd/clusterctl/cmd.Execute sigs.k8s.io/cluster-api/cmd/clusterctl/cmd/root.go:113 main.main sigs.k8s.io/cluster-api/cmd/clusterctl/main.go:27 runtime.main runtime/proc.go:272 runtime.goexit runtime/asm_amd64.s:1700 , 
Error:exit status 1 

Solution

Disclaimer: Some of the procedures described below may not be officially supported by VMware. Use it at your own risk. I suggest to contact broadcom support to troubleshoot this issue.

Googling around, I found the KB that indicates exactly my error "Management cluster backup failed. Please check logs for more details.", and which tells me to contact support.

I tried to investigate by connecting via SSH to the SSPI and typing ...

df -h

The root "/" directory is 100% used, which is not good at all, regardless.

In my cases, I emptied the root folder by compressing the "log" folder (13 GB) (which was under the "/root" directory) previously used for troubleshooting.
Then I tried to manually launch the backup and it worked.

That's it.